CATH Classification

Domain Context

CATH Clusters

Superfamily DNA-directed RNA polymerase, insert domain
Functional Family DNA-directed RNA polymerase subunit alpha

Enzyme Information

2.7.7.6
DNA-directed RNA polymerase.
based on mapping to UniProt A7ZSI4
Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1).
-!- Catalyzes DNA-template-directed extension of the 3'-end of an RNA strand by one nucleotide at a time. -!- Can initiate a chain de novo. -!- In eukaryotes three forms of the enzyme have been distinguished on the basis of sensitivity of alpha-amanitin, and the type of RNA synthesized. -!- See also EC 2.7.7.19 and EC 2.7.7.48.

UniProtKB Entries (3)

P00579
RPOD_ECOLI
Escherichia coli K-12
RNA polymerase sigma factor RpoD
A7ZUK2
RPOC_ECO24
Escherichia coli O139:H28 str. E24377A
DNA-directed RNA polymerase subunit beta'
B1IYV1
RPOZ_ECOLC
Escherichia coli ATCC 8739
DNA-directed RNA polymerase subunit omega

PDB Structure

PDB 4XSZ
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
CBR antimicrobials inhibit RNA polymerase via at least two bridge-helix cap-mediated effects on nucleotide addition.
Bae, B., Nayak, D., Ray, A., Mustaev, A., Landick, R., Darst, S.A.
Proc.Natl.Acad.Sci.USA
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